Windows 10: Initialisation of TPM security hardware fails

I had to reset my Surface and am trying to set up my Bitlocker once more but I always get an error.

The requested Process is not supported Der angeforderte Vorgang wird nicht unterstützt


The TPM module is correctly installed according to the device manager.

:)

 

Initialisation of the Trusted Platform Module (TPM) failed

I'm not finding any specific issues on Win 10 1909, but ironically, there are a couple of known TPM issues on 2004.

If you do upgrade to 2004, I would suggest installing the currently available Cumulative Update Preview KB457144.

From the list of fixes there are 2 TPM related issues addressed:

1) Addresses an issue that causes communication with the TPM to time out and fail.

2) Addresses an issue that prevents hash signing from working correctly when using the Microsoft Platform Crypto Provider for Trusted Platform Modules (TPM). This issue might also affect networking software, such as virtual private network (VPN) applications.

Resources:

KB4571744 release notes:

https://support.microsoft.com/en-us/...date-kb4571744

You can download the preview release here:

https://www.catalog.update.microsoft...px?q=kb4571744

EDIT: If you prefer, you can also download that preview cumulative update by going into the updates section of settings and choosing the option called "View optional updates".

 

Initialisation of the Trusted Platform Module (TPM) failed

Hi, here's some information on TPM:
https://docs.microsoft.com/en-us/win...hip-of-the-tpm

Ideapad- earlier Windows build:
Error id 27 TPM-English Community

 

TPM Security Processor fails to start.

Hi,

Thank you for writing to Microsoft Community Forums.

In order to get clarity and to assist you accordingly, we would need some information.

1. What is the version and
   build
   of you operating system? In the Search box, type
   winver to get this info.
   
2. Are you aware of any changes made on your PC before this issue occurred?
   

Trusted Platform Module (TPM) Management is a new feature set in Windows to administer the TPM security hardware in your computer. A TPM is a microchip designed to provide basic
security-related functions, primarily involving encryption keys. The TPM is usually installed on the motherboard of a computer or laptop, and communicates with the rest of the system using a hardware bus.

Code 10 in device manager indicates that the device's hardware key contains a "FailReasonString" value, and the value string is displays an error message defined by the hardware manufacturer. If the hardware key does not contain
a “FailReasonString” value the message above is displayed.

Refer to the article for more information on how to fix code 10 error.

Error codes in Device Manager in Windows

Thanks,

Suman.B

Microsoft Community – Moderator